CN202075408U - Ultrasonic transducer, sensor and reverse radar system - Google Patents
Ultrasonic transducer, sensor and reverse radar system Download PDFInfo
- Publication number
- CN202075408U CN202075408U CN201120127369.0U CN201120127369U CN202075408U CN 202075408 U CN202075408 U CN 202075408U CN 201120127369 U CN201120127369 U CN 201120127369U CN 202075408 U CN202075408 U CN 202075408U
- Authority
- CN
- China
- Prior art keywords
- ultrasonic transducer
- sensor
- housing
- inner chamber
- location structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 claims abstract description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 239000002131 composite material Substances 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/521—Constructional features
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
- G01S15/931—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/004—Mounting transducers, e.g. provided with mechanical moving or orienting device
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Transducers For Ultrasonic Waves (AREA)
Abstract
The utility model provides an ultrasonic transducer, including a housing, in which an inner cavity is formed, piezoelectric material sheets and composite material arranged in the inner cavity and a lead leaded out from the inner cavity. The ultrasonic transducer is characterized in that the end sidewall of the housing is provided with a positioning structure for determining the direction of the ultrasonic transducer. The utility model also provides a sensor and a reverse radar system including the ultrasonic transducer. According to the utility model, the direction of the ultrasonic transducer relative to the sensor housing can be controlled accurately, fast and conveniently, thereby the measure result precision of the reverse radar system can be substantially raised.
Description
Technical field
The utility model relates to a kind of ultrasonic transducer, a kind of sensor and a kind of reverse radar system that comprises ultrasonic transducer that comprises ultrasonic transducer.
Background technology
Reverse radar system generally includes electronic control unit, ultrasonic sensor and display or hummer.Ultrasonic sensor is used for emission and received ultrasonic signal, can measure the distance of testee by ultrasonic sensor.Electronic control unit is used to launch sinusoidal wave pulse and gives ultrasonic sensor, and handles the signal that receives from ultrasonic sensor, converse distance value after, with data and display or hummer communication.Display or hummer be from electronic control unit receiving range data, and according to the far and near range of a signal value of distance with the distance alarm sound of different stage is provided.
Ultrasonic sensor generally includes lasso, ultrasonic transducer, rubber ring, shell and printed circuit board (PCB).Ultrasonic transducer has two orthogonal orientations, if one of them direction is called horizontal orientation, another orientation then is a vertical orientation.When the assembling ultrasonic sensor, should guarantee that the horizontal orientation of ultrasonic transducer is parallel with vertical orientation with the horizontal orientation of shell respectively with vertical orientation.The assembling process of ultrasonic sensor is more loaded down with trivial details, complicated.The orientation of ultrasonic transducer must accurately be controlled in assembling process, otherwise can influence the accuracy of the measurement result of reverse radar system.In the prior art, between the step of the step of the orientation of ultrasonic transducer by the ultrasonic transducer outside and rubber ring inboard cooperate and rubber ring on realize cooperating between the step on other step and the shell.For the orientation that makes ultrasonic transducer is accurately controlled, adjust its orientation by rotating ultrasonic transducer manually usually.But, because rubber ring is softer, can not fix mechanically, deviation appears in the orientation of ultrasonic transducer easily, and its misalignment angle can reach ± and 10 °, this greatly reduces the precision of the measurement result of reverse radar system.
Therefore, sensor and the reverse radar system that needs a kind of improved ultrasonic transducer and comprise this ultrasonic transducer.
The utility model content
The purpose of this utility model is the shortcoming that exists in the above-mentioned prior art in order to overcome, and a kind of ultrasonic transducer is provided, and the orientation of this ultrasonic transducer can be accurately controlled, thereby reduces the angular deviation of the orientation of ultrasonic transducer.The utility model also provides sensor and the reverse radar system that comprises this ultrasonic transducer.
Above-mentioned purpose of the present utility model realizes that by a kind of like this ultrasonic transducer this ultrasonic transducer comprises:
Housing is formed with inner chamber on described housing;
Be arranged on patch of piezoelectric material and compound substance in the described inner chamber; And
The lead of drawing from described inner chamber;
It is characterized in that the distolateral wall of described housing is provided with the location structure of the orientation that is used for definite described ultrasonic transducer.
Preferably, described location structure is formed at least two holes on the described distolateral wall.
Preferably, described location structure is formed at least two juts on the described distolateral wall.
Comprise according to sensor of the present utility model:
Shell;
Rubber ring; And
Ultrasonic transducer, described ultrasonic transducer are set in the described rubber ring and are housed in the described shell, and described ultrasonic transducer comprises:
Housing is formed with inner chamber on described housing;
Be arranged on patch of piezoelectric material and compound substance in the described inner chamber; And
The lead of drawing from described inner chamber;
It is characterized in that the distolateral wall of described housing is provided with location structure, be used for determining that the orientation of described ultrasonic transducer is to control the orientation of described ultrasonic transducer with respect to described sensor outer housing.
Comprise aforesaid ultrasonic transducer or aforesaid sensor according to reverse radar system of the present utility model.
Can be accurately and control the orientation of ultrasonic transducer efficiently and easily according to the utility model with respect to sensor outer housing, thus significantly improve the precision of the measurement result of reverse radar system.
Description of drawings
Fig. 1 has shown the stereographic map according to ultrasonic transducer of the present utility model;
Fig. 2 has shown the front view according to ultrasonic transducer of the present utility model;
Fig. 3 has shown the side view according to ultrasonic transducer of the present utility model; And
Fig. 4 has shown the exploded perspective view that comprises according to the sensor of ultrasonic transducer of the present utility model.
Embodiment
Describe in detail according to ultrasonic transducer of the present utility model and sensor below with reference to Fig. 1-4.As Figure 1-3, the housing 3 that comprises general cylindrical according to ultrasonic transducer 1 of the present utility model.Housing 3 is made of aluminum usually.On housing 3, be formed with inner chamber 5.As required, inner chamber 5 can have rule or irregularly shaped.The patch of piezoelectric material (not shown) sticks in the inner chamber 5 and filled required compound substance 7 in inner chamber 5.Draw from inner chamber 5 and via compound substance and to be used for the lead 9 that is connected with printed circuit board (PCB).
Unlike the prior art, be provided with the location structure 13 of the orientation that is used for determining ultrasonic transducer 1 according to the distolateral wall 11 of the housing 3 of ultrasonic transducer 1 of the present utility model.As long as the horizontal orientation that can guarantee ultrasonic transducer 1 and vertical orientation are parallel with vertical orientation with the horizontal orientation of the shell 19 (as shown in Figure 4) of the ultrasonic sensor of final formation respectively, location structure 13 can be any suitable structure.Preferably, location structure 13 can be formed in two holes 15 on the distolateral wall 11.Two holes 15 can be distributed on the distolateral wall 11 randomly.Certainly, the quantity in hole 15 can be more than two.
Alternatively, location structure 13 can be formed in two jut (not shown) on the distolateral wall 11.Two juts can be distributed on the distolateral wall 11 randomly.Certainly, the quantity of jut can be more than two.
Fig. 4 has shown the sensor 17 that comprises according to ultrasonic transducer of the present utility model., earlier sensor outer housing 19 is fixed on the assembling stand (not shown) during sensor 17 in assembling, inserts ultrasonic transducer 1 in the rubber ring 21 and guarantee that the location structure 13 on the ultrasonic transducer 1 can not blocked by rubber ring 21.At location structure 13 is under the situation in hole, and the probe (not shown) that is provided with on the assembling stand is inserted in the hole.Because probe is predefined with respect to the orientation of sensor outer housing 19, thereby only need simply probe is inserted in the hole on the ultrasonic transducer 1, just can be accurately and control the orientation of ultrasonic transducer 1 efficiently and easily with respect to sensor outer housing 19.Alternatively, be under the situation of jut at location structure 13, utilize the clip (not shown) that is provided with on the assembling stand to clamp jut.Because clip is predefined with respect to the orientation of sensor outer housing 19, thereby only need simply to clamp jut on the ultrasonic transducer 1 with clip, just can be accurately and control the orientation of ultrasonic transducer 1 efficiently and easily with respect to sensor outer housing 19.Then, lasso 23 is assembled on the sensor outer housing 19, thereby ultrasonic transducer 1 is remained in the sensor outer housing 19 suitably according to existing connected mode.At last, will be connected with printed circuit board (PCB) 25 from the lead 9 that ultrasonic transducer 1 is drawn and printed circuit board (PCB) 25 is assembled on the sensor outer housing 19, thereby finish the assembling of sensor.
When assembling comprises sensor according to ultrasonic transducer of the present utility model, because ultrasonic transducer is provided with location structure, by utilizing probe or the clip that is provided with on the assembling stand, can be accurately and control the orientation of ultrasonic transducer efficiently and easily with respect to sensor outer housing, thus make the angular deviation of orientation of ultrasonic transducer be controlled in ± 5 ° scope.Therefore, comprise that the precision according to the measurement result of the reverse radar system of ultrasonic transducer of the present utility model can be significantly increased.
Abovely described according to ultrasonic transducer of the present utility model with reference to preferred embodiment.But, it will be understood by those skilled in the art that under the situation that does not break away from claims restricted portion, can also be to carrying out various improvement or replacement according to ultrasonic transducer of the present utility model.
Claims (10)
1. a ultrasonic transducer (1) comprising:
Housing (3) is formed with inner chamber (5) on described housing (3);
Be arranged on patch of piezoelectric material and compound substance in the described inner chamber (5); And
The lead (9) of drawing from described inner chamber (5);
It is characterized in that the distolateral wall (11) of described housing (3) is provided with the location structure (13) of the orientation that is used for definite described ultrasonic transducer (1).
2. ultrasonic transducer as claimed in claim 1 (1) is characterized in that, described location structure (13) is formed at least two holes (15) on the described distolateral wall (11).
3. ultrasonic transducer as claimed in claim 1 (1) is characterized in that, described location structure (13) is formed at least two juts on the described distolateral wall (11).
4. a sensor (17) comprising:
Shell (19);
Rubber ring (21); And
Ultrasonic transducer (1), described ultrasonic transducer (1) are set in the described rubber ring (21) and are housed in the described shell (19), and described ultrasonic transducer (1) comprising:
Housing (3) is formed with inner chamber (5) on described housing (3);
Be arranged on patch of piezoelectric material and compound substance in the described inner chamber (5); And
The lead (9) of drawing from described inner chamber (5);
It is characterized in that the distolateral wall (11) of described housing (3) is provided with location structure (13), be used for determining that the orientation of described ultrasonic transducer (1) is to control the orientation of described ultrasonic transducer (1) with respect to described sensor outer housing (19).
5. sensor as claimed in claim 4 (17) is characterized in that, described location structure (13) is formed at least two holes (15) on the described distolateral wall (11).
6. sensor as claimed in claim 4 (17) is characterized in that, described location structure (13) is formed at least two juts on the described distolateral wall (11).
7. sensor as claimed in claim 4 (17), it is characterized in that, described rubber ring (21) partly blocks described distolateral wall (11), and described location structure (13) is distributed on the distolateral wall (11) and is not blocked part and be distributed in described inner chamber (5) on every side by rubber ring (21).
8. sensor as claimed in claim 4 (17) is characterized in that, described sensor (17) also comprises lasso (23), in order to be assembled on the shell (19).
9. a reverse radar system is characterized in that, comprises as claim 1,2 or 3 described ultrasonic transducers (1).
10. a reverse radar system is characterized in that, comprises as claim 4,5,6,7 or 8 described sensors (17).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120127369.0U CN202075408U (en) | 2011-04-22 | 2011-04-22 | Ultrasonic transducer, sensor and reverse radar system |
| PCT/CN2012/074442 WO2012142965A1 (en) | 2011-04-22 | 2012-04-20 | Ultrasonic transducer, sensor, and reversing radar system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120127369.0U CN202075408U (en) | 2011-04-22 | 2011-04-22 | Ultrasonic transducer, sensor and reverse radar system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202075408U true CN202075408U (en) | 2011-12-14 |
Family
ID=45113505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120127369.0U Expired - Lifetime CN202075408U (en) | 2011-04-22 | 2011-04-22 | Ultrasonic transducer, sensor and reverse radar system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN202075408U (en) |
| WO (1) | WO2012142965A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012142965A1 (en) * | 2011-04-22 | 2012-10-26 | 博世汽车部件(苏州)有限公司 | Ultrasonic transducer, sensor, and reversing radar system |
| CN106199615A (en) * | 2016-09-12 | 2016-12-07 | 广州市佑航电子有限公司 | Piezoelectric ceramic piece and there is the ultrasonic sensor of this piezoelectric ceramic piece |
| CN106908799A (en) * | 2015-12-23 | 2017-06-30 | 法雷奥汽车内部控制（深圳）有限公司 | A kind of ultrasonic sensor |
| CN112840223A (en) * | 2019-02-18 | 2021-05-25 | Vega格里沙贝两合公司 | Radar sensors for factory and logistics automation |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3939387A1 (en) * | 1989-11-29 | 1991-06-06 | Swf Auto Electric Gmbh | Ultrasonic distance warning system esp. for motor vehicles - has aperture covering membrane carrying piezo-plate to eliminate group echos |
| JP3628480B2 (en) * | 1997-05-30 | 2005-03-09 | 株式会社デンソー | Ultrasonic sensor |
| DE19816456C1 (en) * | 1998-04-14 | 1999-06-17 | Trw Automotive Electron & Comp | Ultrasound sensor used in automobile |
| JP4438667B2 (en) * | 2005-03-29 | 2010-03-24 | 株式会社デンソー | Ultrasonic sensor and ultrasonic transducer |
| JP4742924B2 (en) * | 2006-03-15 | 2011-08-10 | 株式会社デンソー | Ultrasonic sensor |
| JP4742923B2 (en) * | 2006-03-15 | 2011-08-10 | 株式会社デンソー | Ultrasonic sensor |
| JP4720587B2 (en) * | 2006-04-10 | 2011-07-13 | 株式会社デンソー | Ultrasonic sensor |
| JPWO2008129627A1 (en) * | 2007-04-11 | 2010-07-22 | 株式会社フコク | Piezoelectric vibrator unit Case member of piezoelectric vibrator unit |
| TW201033050A (en) * | 2009-03-10 | 2010-09-16 | shi-xiong Li | Anti-EMI ultrasonic probe |
| CN202075408U (en) * | 2011-04-22 | 2011-12-14 | 博世汽车部件(苏州)有限公司 | Ultrasonic transducer, sensor and reverse radar system |
-
2011
- 2011-04-22 CN CN201120127369.0U patent/CN202075408U/en not_active Expired - Lifetime
-
2012
- 2012-04-20 WO PCT/CN2012/074442 patent/WO2012142965A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012142965A1 (en) * | 2011-04-22 | 2012-10-26 | 博世汽车部件(苏州)有限公司 | Ultrasonic transducer, sensor, and reversing radar system |
| CN106908799A (en) * | 2015-12-23 | 2017-06-30 | 法雷奥汽车内部控制（深圳）有限公司 | A kind of ultrasonic sensor |
| CN106199615A (en) * | 2016-09-12 | 2016-12-07 | 广州市佑航电子有限公司 | Piezoelectric ceramic piece and there is the ultrasonic sensor of this piezoelectric ceramic piece |
| CN112840223A (en) * | 2019-02-18 | 2021-05-25 | Vega格里沙贝两合公司 | Radar sensors for factory and logistics automation |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012142965A1 (en) | 2012-10-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111214 |
|
| CX01 | Expiry of patent term |